213320021122120 has 32 divisors (see below), whose sum is σ = 523603688209920. Its totient is φ = 77570916771520.

The previous prime is 213320021122009. The next prime is 213320021122123. The reversal of 213320021122120 is 21221120023312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 213320021122091 and 213320021122100.

It is not an unprimeable number, because it can be changed into a prime (213320021122123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242409114472 + ... + 242409115351.

It is an arithmetic number, because the mean of its divisors is an integer number (16362615256560).

Almost surely, 2^{213320021122120} is an apocalyptic number.

213320021122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213320021122120 is an abundant number, since it is smaller than the sum of its proper divisors (310283667087800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213320021122120 is a wasteful number, since it uses less digits than its factorization.

213320021122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484818229845 (or 484818229841 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 213320021122120 its reverse (21221120023312), we get a palindrome (234541141145432).

The spelling of 213320021122120 in words is "two hundred thirteen trillion, three hundred twenty billion, twenty-one million, one hundred twenty-two thousand, one hundred twenty".